Tetrahedron p. 7495 - 7520 (1995)
Update date:2022-09-26
Topics:
Barentsen, Helma M.
Sieval, Alex B.
Cornelisse, Jan
The meta photocycloaddition of 4-substituted 5-phenylpent-1-enes. 10-18, has been studied. The monosubstituted derivatives always prefer 2,6 addition, independent of the size of the substituent. For 2,6 addition two basic conformations are possible. Disubstituted compounds yield predominantly 1,3 addition with the sterically more demanding group exo. Except for the methoxymethyl and THF derivative the oxygen is found exo as a result of repulsion, while the monohydroxy derivative gives also endo which might be explained by hydrogen bonding. The products from compound 11 change from mainly endo-OH in cyclohexane to chiefly exo-OH in methanol. Much similarity is found with Diels-Alder cycloaddition.
View MoreShifang Taifeng New Flame Retardant Co., Ltd
Contact:02884721008
Address:tingjiang industrial park, hefeng town
Ji'an Hairui Natural Plant Co. Ltd.
Contact:0796-8105528
Address:Meilin industry park, Qingyuan district Ji'an City, Jiangxi Province
Xinxiang Junlong Biological Technology Co., Ltd.
website:https://junlongbio.lookchem.com/
Contact:86-13525059581
Address:Xinxiang City, Henan Province
Contact:+86-574-89075960
Address:#100 Xiang Yun Road, New High tech area, Ningbo, China
Contact:0086 371 65711996
Address:Jalan 4/3, Kawasan Perindustrian Serendah, 48000 Rawang,
Doi:10.1016/0040-4039(95)01273-K
(1995)Doi:10.1039/d0ob01151g
(2020)Doi:10.1021/jm00041a014
(1994)Doi:10.1021/jo00116a027
(1995)Doi:10.1016/0040-4039(94)88270-3
(1994)Doi:10.1080/10426509808032471
(1998)